VTG Sterling Silver & Green Onyx Gemstone Aztec Mask Bracelet. Has alternating and detailed Aztec masks; one set is sterling, the other set is a beautifully carved deep rich green onyx gemstone. Stamped Signed BGM Hecho en Mexico 925. From the DF Distrio Federal of Mexico City. Measures: Approx. 7-3/4" Long x 7/8" at Widest Point. Condition: VTG Pre-Owned Greet. Clasp works. Weight: 19.9g